package Test0301;

public class CoculateDemo {
    @check
    public void test1(){
        System.out.println("1+0="+ (1+0));
    }
    @check
    public void test2(){
        System.out.println("1-0="+ (1-0));
    }
    @check
    public void test3(){
        System.out.println("1/0="+ (1/0));
    }
    @check
    public void test4(){
        String s = null;
        s.toString();
    }
    public int test5(int a ,int b){
       return a + b;
    }

}
